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No throttle on syncrowave 250

Hello everyone!

New to the forum, this is my first post. I own a small machine shop, and do a little bit of welding now and then. I have an XMT 304 that I totally love, but I needed something to weld aluminum, so I picked up a used syncrowave 250 with a water cooled torch. I cant seem to get it to throttle. My pedal is a RFCS 14 and it works perfectly on the XMT. High freq works fine, too good actually, to end a weld I have to pull away. Amperage is set to the unit, not remote 14, and output is set to remote 14. With amperage set to remote 14, I get these cool lightening bolts that look like those gas filled sphere light things you can buy at the mall. With output set to "on" I get some sparks when I drag the tungsten across the work, but thats about it.
When I brought it home it had a sticker that read "wired for 240". Great! I hooked it up, and it sounded really weird, and the fan in the chiller was going really slow. I found out about the jumpers and turns out it was wired for 480. Did I smoke something? Or am I over looking a setting somewhere?
Thanks for you help.

Sorry for not posting a response for a while. I tried every setting imaginable, to no avail. I finally took in in and got quoted $848 for a new main circuit board. ouch. Before I tell them to go ahead - anyone know where to find a new main circuit board? I know I can change this myself.

What the.......I replied to this an hour ago, but it didn't show up. So if it shows up twice, thats why.

Thanks for the advice, I tried every setting imaginable to no avail. I took my machine in for service and was quoted $848 for parts and labor on a new main circuit board. I decided to pay the $90 for the evaluation and just replace the board myself. Now then.....where to get a main circuit board.......?